There Is Never Only One Of Anything

We Can Make A Similar Examination, But With Greater Uncertainty, Of The Extraterrestrial Hypothesis That Holds That A Wide Range Of Ufos Viewed On The Planet Earth Are Space Vehicles From Planets Of Other Stars.

By Exploring Other Worlds We Safeguard This One. By Itself, I Think This Fact More Than Justifies The Money Our Species Has Spent In Sending Ships To Other Worlds. It Is Our Fate To Live During One Of The Most Perilous And, At The Same Time, One Of The Most Hopeful Chapters In Human History.

Science Is A Way Of Thinking Much More Than It Is A Body Of Knowledge.

Scientists Make Mistakes. Accordingly, It Is The Job Of The Scientist To Recognize Our Weakness, To Examine The Widest Range Of Opinions, To Be Ruthlessly Self-critical. Science Is A Collective Enterprise With The Error-correction Machinery Often Running Smoothly.

Observation: I Can't See A Thing. Conclusion: Dinosaurs.